991920482 has 8 divisors (see below), whose sum is σ = 1700435136. Its totient is φ = 425108772.

The previous prime is 991920463. The next prime is 991920497. The reversal of 991920482 is 284029199.

991920482 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×991920482² = 1967812485222224648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35425718 + ... + 35425745.

It is an arithmetic number, because the mean of its divisors is an integer number (212554392).

Almost surely, 2^991920482 is an apocalyptic number.

991920482 is a deficient number, since it is larger than the sum of its proper divisors (708514654).

991920482 is a wasteful number, since it uses less digits than its factorization.

991920482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70851472.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 991920482 is about 31494.7691212366. The cubic root of 991920482 is about 997.2995414211.

The spelling of 991920482 in words is "nine hundred ninety-one million, nine hundred twenty thousand, four hundred eighty-two".